FRD doesn't run. Something with Java machine?

Hello.
Vity, thank you for your program. It's useful and convenient.
But I've got problem with running FreeRapid.
Everything was fine, but once FRD shown me the error message. I've tried to restart it, but frd didn't start anymore. When I run it, I can see the splashscreen, then nothing happens. I have feelings, that program "Kleptomania" I installed and tried to use made some changes in system. Now I can run no java applications, except java applets in web browser.